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255101345 = 551020269
BaseRepresentation
bin11110011010010…
…00100110100001
3122210000111020222
433031020212201
51010301220340
641151412425
76215216462
oct1715104641
9583014228
10255101345
11120aa8464
1271524115
1340b0a655
1425c46d69
15175e08b5
hexf3489a1

255101345 has 4 divisors (see below), whose sum is σ = 306121620. Its totient is φ = 204081072.

The previous prime is 255101339. The next prime is 255101377. The reversal of 255101345 is 543101552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55472704 + 199628641 = 7448^2 + 14129^2 .

It is a cyclic number.

It is not a de Polignac number, because 255101345 - 26 = 255101281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25510130 + ... + 25510139.

It is an arithmetic number, because the mean of its divisors is an integer number (76530405).

Almost surely, 2255101345 is an apocalyptic number.

It is an amenable number.

255101345 is a deficient number, since it is larger than the sum of its proper divisors (51020275).

255101345 is an equidigital number, since it uses as much as digits as its factorization.

255101345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51020274.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 255101345 is about 15971.8923424872. The cubic root of 255101345 is about 634.2165674711.

Adding to 255101345 its reverse (543101552), we get a palindrome (798202897).

The spelling of 255101345 in words is "two hundred fifty-five million, one hundred one thousand, three hundred forty-five".

Divisors: 1 5 51020269 255101345